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mm, vmscan: add classzone information to tracepoints

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This is convenient when tracking down why the skip count is high because
it'll show what classzone kswapd woke up at and what zones are being
isolated.

Link: http://lkml.kernel.org/r/1467970510-21195-29-git-send-email-mgorman@techsingularity.net
Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mel Gorman
2016-07-28 15:46:47 -07:00
committed by Linus Torvalds
parent 84c7a7771f
commit e5146b12e2
2 changed files with 40 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
include/trace/events/vmscan.h
View File

@@ -55,21 +55,23 @@ TRACE_EVENT(mm_vmscan_kswapd_sleep,
TRACE_EVENT(mm_vmscan_kswapd_wake,
TP_PROTO(int nid, int order),
TP_PROTO(int nid, int zid, int order),
TP_ARGS(nid, order),
TP_ARGS(nid, zid, order),
TP_STRUCT__entry(
__field( int, nid )
__field( int, zid )
__field( int, order )
),
TP_fast_assign(
__entry->nid = nid;
__entry->zid = zid;
__entry->order = order;
),
TP_printk("nid=%d order=%d", __entry->nid, __entry->order)
TP_printk("nid=%d zid=%d order=%d", __entry->nid, __entry->zid, __entry->order)
);
TRACE_EVENT(mm_vmscan_wakeup_kswapd,
@@ -98,47 +100,50 @@ TRACE_EVENT(mm_vmscan_wakeup_kswapd,
DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template,
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx),
TP_ARGS(order, may_writepage, gfp_flags),
TP_ARGS(order, may_writepage, gfp_flags, classzone_idx),
TP_STRUCT__entry(
__field( int, order )
__field( int, may_writepage )
__field( gfp_t, gfp_flags )
__field( int, classzone_idx )
),
TP_fast_assign(
__entry->order = order;
__entry->may_writepage = may_writepage;
__entry->gfp_flags = gfp_flags;
__entry->classzone_idx = classzone_idx;
),
TP_printk("order=%d may_writepage=%d gfp_flags=%s",
TP_printk("order=%d may_writepage=%d gfp_flags=%s classzone_idx=%d",
__entry->order,
__entry->may_writepage,
show_gfp_flags(__entry->gfp_flags))
show_gfp_flags(__entry->gfp_flags),
__entry->classzone_idx)
);
DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin,
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx),
TP_ARGS(order, may_writepage, gfp_flags)
TP_ARGS(order, may_writepage, gfp_flags, classzone_idx)
);
DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_reclaim_begin,
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx),
TP_ARGS(order, may_writepage, gfp_flags)
TP_ARGS(order, may_writepage, gfp_flags, classzone_idx)
);
DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_memcg_softlimit_reclaim_begin,
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
TP_PROTO(int order, int may_writepage, gfp_t gfp_flags, int classzone_idx),
TP_ARGS(order, may_writepage, gfp_flags)
TP_ARGS(order, may_writepage, gfp_flags, classzone_idx)
);
DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template,
@@ -266,16 +271,18 @@ TRACE_EVENT(mm_shrink_slab_end,
DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
TP_PROTO(int order,
TP_PROTO(int classzone_idx,
int order,
unsigned long nr_requested,
unsigned long nr_scanned,
unsigned long nr_taken,
isolate_mode_t isolate_mode,
int file),
TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file),
TP_ARGS(classzone_idx, order, nr_requested, nr_scanned, nr_taken, isolate_mode, file),
TP_STRUCT__entry(
__field(int, classzone_idx)
__field(int, order)
__field(unsigned long, nr_requested)
__field(unsigned long, nr_scanned)
@@ -285,6 +292,7 @@ DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
),
TP_fast_assign(
__entry->classzone_idx = classzone_idx;
__entry->order = order;
__entry->nr_requested = nr_requested;
__entry->nr_scanned = nr_scanned;
@@ -293,8 +301,9 @@ DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
__entry->file = file;
),
TP_printk("isolate_mode=%d order=%d nr_requested=%lu nr_scanned=%lu nr_taken=%lu file=%d",
TP_printk("isolate_mode=%d classzone=%d order=%d nr_requested=%lu nr_scanned=%lu nr_taken=%lu file=%d",
__entry->isolate_mode,
__entry->classzone_idx,
__entry->order,
__entry->nr_requested,
__entry->nr_scanned,
@@ -304,27 +313,29 @@ DECLARE_EVENT_CLASS(mm_vmscan_lru_isolate_template,
DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_lru_isolate,
TP_PROTO(int order,
TP_PROTO(int classzone_idx,
int order,
unsigned long nr_requested,
unsigned long nr_scanned,
unsigned long nr_taken,
isolate_mode_t isolate_mode,
int file),
TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
TP_ARGS(classzone_idx, order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
);
DEFINE_EVENT(mm_vmscan_lru_isolate_template, mm_vmscan_memcg_isolate,
TP_PROTO(int order,
TP_PROTO(int classzone_idx,
int order,
unsigned long nr_requested,
unsigned long nr_scanned,
unsigned long nr_taken,
isolate_mode_t isolate_mode,
int file),
TP_ARGS(order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
TP_ARGS(classzone_idx, order, nr_requested, nr_scanned, nr_taken, isolate_mode, file)
);